No abstract available
MeSH terms
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Antirheumatic Agents / adverse effects*
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Arthritis, Rheumatoid / drug therapy*
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Humans
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Lung Diseases / diagnosis
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Methotrexate / adverse effects*
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Patient Selection
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Pneumonia / chemically induced*
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Pneumonia / prevention & control*
Substances
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Antirheumatic Agents
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Methotrexate